Swing-truck for locomotives.



No. 645,834. y Patented Mar. 2o, |900."

K. RusHToN.

SWING TRUCK FOR LDCQ'MOTIVES. (Applieion med Deb. 11,' 1897.)

No. 645,834. I Paken'ted Mar. 20, |900.

K. RUSHTON.

-SWING TRUGKJFOR LOCOMOTIVES.

(Application med nec', 11, 1a97.\

(No Model.) 2 sheets-sheet 2. n

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UNITED STATES PATENT muon.

KENNETH RSHTON, OF PHILABELPHIA, PENNSYLVANIA, ASSIGNOR TO BURNHAM, WILLIAMS d; CO., OF SAME PLACE.

SWING-TRUCK FOR LOCOMOTIVES.

. sPncIFIcATIoN Vforming part of Letters Patent No. 645,834, dated March 2o, 1900.

Application tiled December 11, 1897.. Serial No.66l,503. (No model.)

To all whom, it may concern,.-

Be it known that l, KENNETH RUsHToN, a citizen of the United States, residing in Philadelphia, Pennsylvania, have invented certain 5 Improvement-s in Swing-Trucks for Locomotives,of which the following is a specification. The object of my invention is to provide a locomotive with a swing-truck situated directly under the fire-box and so arranged as to swing on a radins,as fully described hereinafter, reference being had to the accompanying drawings, in which- Figure l is a side view of sufficient of a locomotive to illustrate my invention. Fig. 2 is a plan view of the truck detached. Fig. 3 is a sectional view on the line 3 3, Fig. 2; and Fig. 4 is a perspective View of a portion of the truck.

Swinging frames for the rear trucks of a locomotive have been made prior to my invention, but have been placed at the rear of the fire-box and ash-pit, so as to allow for the free movement of the suspension-links and other parts of the truck; but prior to my invention swinging trucks have not been placed directly under the lire-box, owing to the fact that the room they occupy would displace a valuable portion of the ash-pit.

Referring now to the drawings, A is one of the side frames of a locomotive; B, the lire-v box; B', the boiler, and B2 the ash pan or pit for the reception 'of the ashes from the lire-box.

In the present instance, D is one of the driving-wheels, having its axle d mounted in a box a in the frame A.

D is one of the rear-truck wheels, the axle d of this wheel being adapted to a box a', mounted in the swinging truck-frame E. This truck-frame in the present instance is composed of two angle-bars E' E', secured to two yoke-frames E2, shaped to-receive the boxes ct' of the axles d. Attached to each anglebar at the center of the truck is a pivot-bar F, having ahead f, which is perforated to receive the pivot-pin f, mounted on the crossbar A' of the frame of the locomotive, so that any lateralv motion given to the truck will be on a radius from the pivot-pin f. The barF has lips f2 at each side, so as to extend above Jthus take the strain off the securing-bolts, as

it will be understood that the pivot-bar, the two angle-bars, and the two yoke-frames are rigidly secured together.

Projecting through each side of each yokeframe is a pivot-bar G, from which are Vhung links I, having pins 'adapted to blocks J, in the present instance secured to the frames J of the equalizing mechanism of the locomotive. In the present instance there are two frames J at each side of the locomotive, and the boxes J are fixed to these frames, so that the frames of the equalizing mechanism intervene between the frame of the locomotive and the truck, the links being so formed as to allow the truck E to swing on its pivotdirectly under the ash-pan of a locomotive' without interfering with it to any great extent, .th'us placing the truck in a position where it can properly support the load and without lengthening the wheel-base of the locomotive.

I claim as my inventionl.l The combination in a locomotive, of a frame, a rear truck pivoted thereto and capable of radial movement with relation to said frame, suspension-links on each side of the truck whereby it may be hung to said frame, said rear truck being disposed directly beneath the ash-pan of the locomotive, substantially as described.

f 2. The combination in a locomotive, of a rear truck made up of cross-bars extending from side to side of the same, yoke-frames at each side of said truck, said yoke-frames being secured to the cross-bars, a pivoted bar also secured to said cross-bars, and suspension-links pivoted to the yoke-frame whereby said truck is secured to the frame of the locomotive, substantially as described.

3. The combination in a locomotive, of the reargtruck made up of two an gle-bars extend- IOO ing from side to side of the same, yoke-frames at each side of said truck, said yoke-frames being secured to the angle-bars, a pivoted bar also secured to said angle-bars, and suspension-links pivoted to the yoke-frame whereby said truck may be secured to the frame of the locomotive, substantially as described.

4. The combination in a locomotive, of a iire-box, an ash-pan, a pivoted truck capable of radial movement with respect to the locomotive-frame arranged directly under the ashpan, equalizing mechanism, and links connecting the truck With the equalizing mechanism, substantially as described.

5. The combination in a locomotiye, oi' a frame, a fire-box, an ash-pan mounted under the fire-box, a truck-axle mounted under the ash-pan, boxes for said axle, a truck adapted to receive the boxes and having a forwardlyextending pivot-bar, said bar being pivoted to the frame of the locomotive so that the truck will be capable of radial movement with respect to said frame, and suspension-links whereby said truck is connected to the frame of the locomotive, substantially as described.

6. The combination in a locomotive, of a frame, a nre-box and ash-pan, a truck-frame under the ash-pan said frame having an extension pivoted to the frame of the locomotive so as to swing on a radius, pins on each end of the truck-frame, links suspended from each pin, blocks pivoted to the links, with equalizing-fran1es to which the blocks are sc cured, substantially as described.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

KENNETH RUSHTON.

Witnesses:

WILL. A. BARR, J os. H. KLEIN. 

